 | James M'Intire - Astronomy - 1850 - 352 pages
...twilight. The morning twilight is the same length. Or, elevate the pole for the latitude of the given place, bring the sun's place in the ecliptic to the brass meridian, set the index to 12, and screw the quadrant of altitude on the brass meridian over the latitude of... | |
 | Richard Phillips (sir.) - 1851
...latitude of the place, and screw the quadrant of altitude on the brass meridian over that latitude : bring the sun's place in the ecliptic to the brass meridian, and set the index to 12 ; turn the globe till the index points to the given hour ; bring the graduated... | |
 | Thomas Turner Tate - Physics - 1855 - 442 pages
...meridian, and set, on a particular day, at any given place. RULE. Rectify the globe for the latitude of the place ; bring the sun's place in the ecliptic to the brass meridian; set the hour circle to XIL) turn the globe till the given star* comes to eastern edge of the wooden... | |
 | Alexander Stewart - 1864 - 684 pages
...latitude of the place, fix the quadrant of altitude on the brass meridian over the given latitude, bring the sun's place in the ecliptic to the brass meridian, and set the hour circle to xii. ; turn the globe till the sun's place in the ecliptic coincides with the... | |
 | Henry Kiddle - Astronomy - 1868 - 300 pages
...that depends upon the obliquity of the ecliptic can be found by the globe, in the following manner :—Bring the sun's place in the ecliptic to the brass meridian, and find its longitude and right ascension ; the difference reduced to time (counting four minutes to a... | |
 | Alexander Stewart - 1869 - 530 pages
...setting, or culminating at any given time and place. BULE. — Eectify the globe for the latitude of the place; bring the sun's place in the ecliptic to the brass meridian, and set the hour circle to xn. ; then turn the globe eastward or westward, according as the time is before... | |
 | Henry Kiddle - Astronomy - 1870 - 300 pages
...for any day of the year, at any place: Make the elevation of the north or south pole above the woodon horizon equal to the latitude, so that the wooden...Find the sun's meridian altitude at New York, June 21st. AM. 73°. 2. At London, Jan. 27th. Ans. 20°. 3. Rio de Janeiro, September 23d. Ans. 67°. PROBLEM... | |
 | Elias Loomis - Astronomy - 1870 - 274 pages
...Azimuth at any Place for any Day and Hour. — Elevate the pole to the latitude of the place ; then bring the sun's place in the ecliptic to the brass meridian, and set the hour index to XII. Then turn the globe eastward or westward, according as the time is before... | |
 | Henry Kiddle - 1873 - 300 pages
...Capricorn. 3. To what places is the sun vertical May 1st? Ans. To all in latitude 16° N. PRORLEM V. — To find the meridian altitude of the sun for any day...Find the sun's meridian altitude at New York, June 21st. Ans. 73°. 2. At London, Jan. 27th. AM. 20°. 3. Hio de Janeiro, September 23d. Am. 67°. PRORLEM... | |
 | Henry Kiddle - Astronomy - 1877 - 296 pages
...depends upon the obliquity of the ecliptic can be found by the globe, in the following manner : — Bring the sun's place in the ecliptic to the brass meridian, and find its longitude and right ascension ; the difference reduced to time (counting four minutes to a... | |
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Elevate the pole as many degrees above the horizon as are equal to the latitude of the place, and screw the quadrant of altitude on the brass meridian, over that latitude; bring the sun's place in the ecliptic to the brass meridian, and set the index... 
